Improvement in combined blind-openers and slat-regulators



L. GATHMANN.

Improvement in Combined Blind Openers and Slat Regulators.- No. 124,050i Patented ses. 27.1872.

/ I l 9,324,4- l

LOUIS GATHMANN, OF CHICAGO, ILLINOIS.

Specification forming part of Letters Patent No. 124,050, dated February 27, 1872.

To all whom it may concer-n Be it known tha-t I, LOUIS GATHMANN, of Chicago, in the county of Cook and State ot' Illinois, have invented certain Improvements in Blind-Opener and Slat-Regulator. ot` which the followingl is a specification, reference being had to the accompanying drawing.

My invention consists in a novel combination and arrangement ot' devices for opening' and closing a window-blind and adjusting the slats thcreot' from within the rooin while the window remains closed, as hereinafter described and claimed.

Figure I is a horizontal section through a window-blind and frame having my improvements applied thereto.

In applying my improvements I set into the rear edge of the sash A a round socket, B, and secure the same to the jeurnal ot' one of the slats C, as shown, so that when the socket is turned it turns the slat also. The slats are all connected by al bar, a, in the usual manner, so that when the one is turned it moves the.

others. In the wiiulow-irame l) I mount a worm, E, and a pinion, G, operated thereby, and the pinion I provide with a square-ended journal, H, protruding ont through the i'ace ot' the window-traine so as to enter the socket B when the blind is closed. Outside oi", but in line with, the worm E I mountanother and independent worm, J, and ou the hinge ofthe blind I secure a pinion, K, into which the second worm engages. rIhrough the center ot' the two worms I make a straight square hole, o, and in the window-frame I mount al spindle, L, in such a manner that it can both turn and move cndwise and with its inner end inserted in the hole c ofthe worms. The extreme inner end of the spindle I make ot' an enlarged square forni to lit the hole c, and its outer end, which protrudes outside ot' the frame, I pro Vide with a knob or handle, as shown. Upon drawing the spindle forward its square end is brought into the Worm E, so that when the spindle is turned it rotates the worin and the pinion, and the square journal ofthe latter, if the blind is shut, turns the socket B and adjusts the slats ot' the blind. When the. spindle is shoved inward its square end is carried into the outer worin J so that the spindle will turn the saine and swing the blind open or shut, according to the direction in which the spindle is turned.

In this manner I produce. a very cheap and simple means wherebythe blind may be opened and closed and its slats adjusted without opening the window, a very great object in the winter season and in windows where the sash is not balanced.

I am awarel that the worm and pinion for opening and closing the blind have long been in use, and therefore I do not claim the same broadly; neither do I claim by themselves the devices for adjusting the slats, as I have an application now pending therefor; but

What I claim is- The combined blind-opener and Slat-adjuster, consisting otthe pinion I( and worm J with the worm E and the pinion G, having' itsjournal H arranged to engage in the socket B and the sliding spindle L, all arranged to operate substantially as herein described.

LOUIS GAIHMANN.

Vitnesses:

J. C. HANSEN, BART. S. DE Fonnsr. 

